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Investment Securities - Carrying value of other investment securities (Details) - USD ($) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
Other investment securities |  |  |
Carrying Value | $ 185,199 | $ 49,124 | $ 49,124
Other-than-temporary impairment on securities | 0 |  |
Federal Home Loan Bank stock |  |  |
Other investment securities |  |  |
Carrying Value | 44,838 | 43,044 | 43,044
Federal Reserve Bank Stock |  |  |
Other investment securities |  |  |
Carrying Value | 129,871 |  |
Investment in unconsolidated subsidiaries |  |  |
Other investment securities |  |  |
Carrying Value | 4,941 | 3,563 | 3,563
Other nonmarketable investment securities |  |  |
Other investment securities |  |  |
Carrying Value | $ 5,549 | $ 2,517 | $ 2,517

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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=121553693&loc=SL6284422-111562 + Details
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- Definition Amount of investments classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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